21493360

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{5483}}^1$

素因数の和:5510

約数の個数: 60

約数和(自身を含む): 58141368

約数和(自身を除く): 36648008

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 5483, 10966, 21932, 27415, 38381, 43864, 54830, 76762, 87728, 109660, 153524, 191905, 219320, 268667, 307048, 383810, 438640, 537334, 614096, 767620, 1074668, 1343335, 1535240, 2149336, 2686670, 3070480, 4298672, 5373340, 10746680, 21493360]

約数ペア:

[(1, 21493360), (2, 10746680), (4, 5373340), (5, 4298672), (7, 3070480), (8, 2686670), (10, 2149336), (14, 1535240), (16, 1343335), (20, 1074668), (28, 767620), (35, 614096), (40, 537334), (49, 438640), (56, 383810), (70, 307048), (80, 268667), (98, 219320), (112, 191905), (140, 153524), (196, 109660), (245, 87728), (280, 76762), (392, 54830), (490, 43864), (560, 38381), (784, 27415), (980, 21932), (1960, 10966), (3920, 5483)]